*{margin: 0;padding: 0;}
.box{width: 300px;background: #9BD080;margin: 0 auto; text-align: center;}
.main-header{height: 100px; background: #1E34F9;}
.content{height: 500px;background: #08FCE6;}
.main-footer{height: 50px;background:#036050; ;}
